用in demand on demand各造一句句子 谢谢

in demand:非常需要的;受欢迎的. 例:You seem to be in great demand today. 解释:你如今似乎很受欢迎. on demand:一经要求, 例:The workers’demand for a 10% pay rise machines which dispense cash on demand. 解释:工人要求提高工资10%可立即提款的机器.